Question

【题目】The machine doesn't work. There ________ something wrong with it.

A.mustn't beB.can't beC.must beD.can be

Answer 1

【答案】C

【解析】

句意：这部机器故障了。一定是出了什么问题。

考查情态动词。根据“The machine doesn't work”可知，此处是肯定出问题了，不能用否定句。排除A、B；选项D是可能，不符合题意，故选C。